JPH0712421A - Cooling device - Google Patents
Cooling deviceInfo
- Publication number
- JPH0712421A JPH0712421A JP5180770A JP18077093A JPH0712421A JP H0712421 A JPH0712421 A JP H0712421A JP 5180770 A JP5180770 A JP 5180770A JP 18077093 A JP18077093 A JP 18077093A JP H0712421 A JPH0712421 A JP H0712421A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- peltier element
- liquid
- cooling
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2321/00—Details of machines, plants or systems, using electric or magnetic effects
- F25B2321/02—Details of machines, plants or systems, using electric or magnetic effects using Peltier effects; using Nernst-Ettinghausen effects
- F25B2321/025—Removal of heat
- F25B2321/0251—Removal of heat by a gas
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ペルチエ効果を利用し
て比較的小型のボックス内等を冷却する冷却装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling device for cooling the inside of a relatively small box or the like by utilizing the Peltier effect.
【０００２】[0002]
【従来の技術】従来、携帯用冷蔵庫等の小型冷却装置と
して、ペルチエ効果を利用したペルチエ素子により冷却
を行うものが存在した。この冷却装置は、図５に示す如
く構成されていた。即ち、冷蔵庫本体10の内面に伝熱用
アルミニューム板16が貼着され、その伝熱用アルミニュ
ーム板16と冷蔵庫本体10の外周との間に断熱材17が介装
される。そして、その断熱材17が一部存在しない部分に
アルミニュームブロック18を設け、そのアルミニューム
ブロック18の一端面と伝熱用アルミニューム板16とを接
触させる。それと共に、アルミニュームブロック18の他
端面とペルチエ素子１の冷却側とを接触させる。2. Description of the Related Art Conventionally, as a small cooling device for a portable refrigerator or the like, there has been one that cools by a Peltier element utilizing the Peltier effect. This cooling device was constructed as shown in FIG. That is, the heat transfer aluminum plate 16 is attached to the inner surface of the refrigerator body 10, and the heat insulating material 17 is interposed between the heat transfer aluminum plate 16 and the outer periphery of the refrigerator body 10. Then, an aluminum block 18 is provided in a portion where the heat insulating material 17 does not partially exist, and one end surface of the aluminum block 18 is brought into contact with the heat transfer aluminum plate 16. At the same time, the other end surface of the aluminum block 18 and the cooling side of the Peltier element 1 are brought into contact with each other.
【０００３】又、ペルチエ素子１の放熱側には放熱用ヒ
ートシンク７が設けられ、それが空間部19内に位置され
る。そして、放熱用ヒートシンク７に隣接してファン８
が設けられ、また空間部19の上端部及び下端部に夫々空
気流入口20及び空気流出口21が形成され、ファン８を駆
動することにより矢印方向に空気が流通する。そして、
ペルチエ素子１に通電することにより放熱用ヒートシン
ク７の発熱を外部に放出する。又、伝熱用アルミニュー
ム板16を介し冷蔵庫内を冷却すると共に、図６に示す如
く庫内の熱をペルチエ素子１及び放熱用ヒートシンク７
を介して外部に放出するものである。このような冷蔵庫
は、図示しないサーモスタットにより冷蔵庫内がほぼ一
定の温度に保たれるように、ペルチエ素子１の通電がＯ
Ｎ−ＯＦＦ制御される。A heat sink 7 for heat radiation is provided on the heat radiation side of the Peltier element 1 and is located in the space 19. Then, the fan 8 is provided adjacent to the heat sink 7 for heat dissipation.
Is provided, and an air inlet 20 and an air outlet 21 are formed at the upper end and the lower end of the space 19, respectively, and by driving the fan 8, air flows in the direction of the arrow. And
When the Peltier element 1 is energized, the heat generated by the heat sink 7 for heat radiation is released to the outside. Further, while cooling the inside of the refrigerator through the heat transfer aluminum plate 16, the heat inside the refrigerator is transferred to the Peltier element 1 and the heat sink 7 for heat dissipation as shown in FIG.
It is released to the outside via. In such a refrigerator, the Peltier element 1 is energized so that the inside of the refrigerator is maintained at a substantially constant temperature by a thermostat (not shown).
N-OFF control is performed.
【０００４】[0004]
【発明が解決しようとする課題】従来のペルチエ素子１
を用いた冷却装置は、その温度制御用センサーが働きペ
ルチエ素子１の通電が遮断されたとき、ペルチエ素子１
自体を通じて外部の熱が冷却装置の室内に伝達される
（図７）欠点があった。即ち、ペルチエ素子１自体が熱
伝導体であるため、それを介して外気の熱が装置内部に
伝達する欠点があった。それにより、熱効率を悪くして
いた。DISCLOSURE OF THE INVENTION Conventional Peltier element 1
The cooling device using the Peltier element 1 operates when its temperature control sensor is activated and the Peltier element 1 is de-energized.
There is a disadvantage that external heat is transferred to the inside of the cooling device through itself (FIG. 7). That is, since the Peltier element 1 itself is a heat conductor, the heat of the outside air is transmitted to the inside of the device via the heat conductor. As a result, the thermal efficiency was deteriorated.
【０００５】[0005]
【課題を解決するための手段】そこで本発明は、上記課
題を解決するため次の構成をとる。本発明の冷却装置
は、通電に伴うペルチエ効果により冷却が行われる冷却
装置において、そのペルチエ素子１の発熱側が、放熱用
ヒートシンク７を介して放熱用空気に連通される。そし
て、内部に液体流路２が設けられた素子用熱交換器３を
前記ペルチエ素子１の冷却側に接触して配置する。さら
に、一部に気体４を保有する液体強制循環路５中に、前
記素子用熱交換器３の液体流路２を介装する。そして通
電の停止に伴い、液体14の強制循環が停止されると共
に、気体４が液体流路２に流入して、そこに保持される
ように構成したことを特徴とする。Therefore, the present invention has the following constitution in order to solve the above problems. In the cooling device of the present invention, the heat generation side of the Peltier element 1 is connected to the heat radiating air via the heat radiating heat sink 7 in the cooling device in which cooling is performed by the Peltier effect accompanying energization. Then, the element heat exchanger 3 in which the liquid flow path 2 is provided is arranged in contact with the cooling side of the Peltier element 1. Further, the liquid flow path 2 of the element heat exchanger 3 is interposed in the liquid forced circulation path 5 having a part of the gas 4. Then, when the energization is stopped, the forced circulation of the liquid 14 is stopped, and the gas 4 flows into the liquid flow path 2 and is retained therein.
【０００６】[0006]
【作用】ペルチエ素子１の通電を停止すると、ペルチエ
素子１に接触する液体流路２中に気体４が流入してそこ
に保持されるから、気体４自体が断熱材となり、外気の
熱が装置内部に伝達されることを阻止する。When the Peltier element 1 is de-energized, the gas 4 flows into the liquid flow path 2 in contact with the Peltier element 1 and is held there. Therefore, the gas 4 itself serves as a heat insulating material, and the heat of the outside air is transferred to the device. Prevents internal transmission.
【０００７】[0007]
【実施例】次に、図面に基づいて本発明の一実施例につ
き説明する。図１は本装置の要部説明図であり、図２は
そのペルチエ素子１の通電状態を示し、図３は同ペルチ
エ素子１の停止状態を示す。又、図４は本装置の取付け
状態を示す一部破断斜視図である。この実施例では、ペ
ルチエ素子１の放熱側にアルミニューム等の良伝熱材料
からなる放熱用ヒートシンク７が接合され、ペルチエ素
子１の冷却側に素子用熱交換器３が接合されている。素
子用熱交換器３の内部は図２の略図に示す如く、蛇行状
のチューブが接触して設けられている。この液体流路２
の一端側はタンク９の上端部に連通され、他端側は庫内
熱交換器22及びポンプ６を介してタンク９の下端に連通
する。なお、このタンク９は素子用熱交換器３よりも低
い位置に配置されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will now be described with reference to the drawings. FIG. 1 is an explanatory view of the main part of the present apparatus, FIG. 2 shows the energized state of the Peltier element 1, and FIG. 3 shows the stopped state of the Peltier element 1. Further, FIG. 4 is a partially cutaway perspective view showing a mounting state of the present apparatus. In this embodiment, a heat radiation heat sink 7 made of a good heat transfer material such as aluminum is joined to the heat radiation side of the Peltier element 1, and a heat exchanger 3 for elements is joined to the cooling side of the Peltier element 1. Inside the element heat exchanger 3, as shown in the schematic view of FIG. 2, a meandering tube is provided in contact. This liquid channel 2
One end side of the tank is communicated with the upper end of the tank 9, and the other end side is communicated with the lower end of the tank 9 via the internal heat exchanger 22 and the pump 6. The tank 9 is arranged at a position lower than the element heat exchanger 3.
【０００８】このようなチューブの回路に液体14が封入
され、液体強制循環路５を構成する。液体14は、公知の
不凍液又は水等が使用される。又、タンク９内はその下
部のみが液体14で満たされ、液体14の上方には常に気体
４が占有する。このようにしてなる本冷却装置の要部
は、一例として携帯用冷蔵庫として図４の如く取付けら
れる。即ち、この実施例では冷蔵庫本体10の内面側に庫
内熱交換器22が配置されると共に、その冷蔵庫本体10に
タンク９及びポンプ６が内装される。ポンプ６は、タン
ク９よりも重力方向下方に位置している。The liquid 14 is enclosed in the circuit of such a tube to form the liquid forced circulation path 5. As the liquid 14, a known antifreeze liquid, water or the like is used. Further, only the lower part of the tank 9 is filled with the liquid 14, and the gas 4 is always occupied above the liquid 14. The main part of the cooling device thus configured is attached as a portable refrigerator as shown in FIG. 4 as an example. That is, in this embodiment, the internal heat exchanger 22 is arranged on the inner surface side of the refrigerator main body 10, and the tank 9 and the pump 6 are incorporated in the refrigerator main body 10. The pump 6 is located below the tank 9 in the direction of gravity.
【０００９】次に、冷蔵庫本体10の開口をヒンジ13を介
して開閉自在に閉塞する蓋11の内部に、ペルチエ素子１
と素子用熱交換器３と放熱用ヒートシンク７とファン８
とが設けられる。即ち、蓋11は上端が閉塞された箱状に
形成され、その空間部19の底に素子用熱交換器３が設け
られ、その素子用熱交換器３内の液体流路の両端が可撓
管12を介してタンク９と庫内熱交換器22とに連結されて
いる。そして素子用熱交換器３の上面にペルチエ素子１
の冷却側が接触し、ペルチエ素子１の放熱側に放熱用ヒ
ートシンク７が接触している。又、電動モータを有する
ファン８が放熱用ヒートシンク７に並列して配置されて
いる。空間部19を閉塞する蓋11の上面板には、空気流入
口20と空気流出口21とが開口されている。そしてファン
８及びポンプ６を回転駆動すると共に、ペルチエ素子１
に通電することにより、庫内熱交換器22を介して冷却室
23内部を冷却する。Next, the Peltier element 1 is placed inside the lid 11 that opens and closes the opening of the refrigerator main body 10 through the hinge 13.
, Heat exchanger 3 for elements, heat sink 7 for heat dissipation, and fan 8
And are provided. That is, the lid 11 is formed in a box shape with the upper end closed, the element heat exchanger 3 is provided at the bottom of the space 19, and both ends of the liquid flow path in the element heat exchanger 3 are flexible. It is connected to the tank 9 and the internal heat exchanger 22 via a pipe 12. Then, the Peltier element 1 is provided on the upper surface of the element heat exchanger 3.
Of the Peltier element 1 is in contact with the heat sink 7 for heat dissipation. A fan 8 having an electric motor is arranged in parallel with the heat sink 7 for heat radiation. An air inlet 20 and an air outlet 21 are opened in the upper plate of the lid 11 that closes the space 19. Then, the fan 8 and the pump 6 are driven to rotate, and the Peltier element 1
Power to the cooling chamber via the internal heat exchanger 22
23 Cool the inside.
【００１０】このとき、冷却室23冷却用の液体14は図２
に示すように液体強制循環路５内を循環する。そして、
素子用熱交換器３の液体流路２において液体14が冷却さ
れ、それが庫内熱交換器22で冷却室23内部を冷却する。
又、ペルチエ素子１の発熱側に接触する放熱用ヒートシ
ンク７は、図４に示す如くファン８により強制冷却され
る。次に、冷却室23内部が所定温度以下に達したとき、
ペルチエ素子１の通電がＯＦＦする。それに伴ってポン
プ６が停止し、液体14は液体強制循環路５の下方側に滞
留する。その結果、素子用熱交換器３の液体流路２内は
空気で満たされることになる。そのため、素子用熱交換
器３は空気層により断熱され、外気の熱が素子用熱交換
器３を介して庫内熱交換器22に伝熱されることを阻止す
る。即ち、ペルチエ素子１の通電が停止したとき、素子
用熱交換器３は断熱構造となり、冷却室23内部の冷却状
態をそのまま維持する。At this time, the liquid 14 for cooling the cooling chamber 23 is as shown in FIG.
It circulates in the liquid forced circulation path 5 as shown in FIG. And
The liquid 14 is cooled in the liquid flow path 2 of the element heat exchanger 3, and the inside heat exchanger 22 cools the inside of the cooling chamber 23.
Further, the heat sink 7 for heat dissipation, which comes into contact with the heat generating side of the Peltier element 1, is forcibly cooled by the fan 8 as shown in FIG. Next, when the inside of the cooling chamber 23 reaches a predetermined temperature or lower,
Energization of the Peltier element 1 is turned off. Along with that, the pump 6 is stopped, and the liquid 14 stays below the liquid forced circulation path 5. As a result, the liquid flow path 2 of the element heat exchanger 3 is filled with air. Therefore, the element heat exchanger 3 is thermally insulated by the air layer, and prevents the heat of the outside air from being transferred to the internal heat exchanger 22 via the element heat exchanger 3. That is, when the Peltier element 1 is de-energized, the element heat exchanger 3 has a heat insulating structure and maintains the cooling state inside the cooling chamber 23 as it is.
【００１１】[0011]
【発明の効果】本発明の冷却装置は、ペルチエ素子１の
冷却側に設けた素子用熱交換器３の液体流路２内に流通
する液体14の強制循環が停止したとき、気体４がその液
体流路２に流通し、そこに保持されるように構成したか
ら、通電が停止されペルチエ効果がないとき、そのペル
チエ素子１を通じて外部の熱が被冷却空間に容易に伝え
られるのを防止する。それにより、効率の良い冷却装置
を提供できる。これは素子用熱交換器３の液体流路２内
に気体４を供給することで、その気体４により断熱効果
を発揮させることができるからである。According to the cooling apparatus of the present invention, when the forced circulation of the liquid 14 flowing in the liquid flow path 2 of the element heat exchanger 3 provided on the cooling side of the Peltier element 1 is stopped, the gas 4 is Since it is configured to flow into the liquid flow path 2 and be held therein, it is possible to prevent external heat from being easily transferred to the cooled space through the Peltier element 1 when the energization is stopped and there is no Peltier effect. . Thereby, an efficient cooling device can be provided. This is because when the gas 4 is supplied into the liquid flow path 2 of the element heat exchanger 3, the gas 4 can exert a heat insulating effect.
【図１】本発明の冷却装置の要部を示す説明図。FIG. 1 is an explanatory view showing a main part of a cooling device of the present invention.
【図２】同装置の通電時における説明図。FIG. 2 is an explanatory view of the device when energized.
【図３】同装置の通電停止時における説明図。FIG. 3 is an explanatory diagram when the power supply to the device is stopped.
【図４】同冷却装置の具体例を示す説明図。FIG. 4 is an explanatory view showing a specific example of the cooling device.
【図５】従来型冷却装置の縦断面略図。FIG. 5 is a schematic vertical sectional view of a conventional cooling device.
【図６】同冷却装置の使用状態を示す説明図であって、
ペルチエ素子の通電状態を示すもの。FIG. 6 is an explanatory view showing a usage state of the cooling device,
Indicates the energized state of the Peltier element.
【図７】同ペルチエ素子の通電停止状態を示すもの。FIG. 7 shows a state in which the Peltier element is not energized.
１ ペルチエ素子 ２ 液体流路 ３ 素子用熱交換器 ４ 気体 ５ 液体強制循環路 ６ ポンプ ７ 放熱用ヒートシンク ８ ファン ９ タンク 10 冷蔵庫本体 11 蓋 12 可撓管 13 ヒンジ 14 液体 16 伝熱用アルミニューム板 17 断熱材 18 アルミニュームブロック 19 空間部 20 空気流入口 21 空気流出口 22 庫内熱交換器 23 冷却室 1 Peltier element 2 Liquid flow path 3 Element heat exchanger 4 Gas 5 Liquid forced circulation path 6 Pump 7 Heat dissipation heat sink 8 Fan 9 Tank 10 Refrigerator body 11 Lid 12 Flexible tube 13 Hinge 14 Liquid 16 Aluminum plate for heat transfer 17 Insulation 18 Aluminum block 19 Space 20 Air inlet 21 Air outlet 22 Heat exchanger in the room 23 Cooling chamber
Claims (1)
われる冷却装置において、 そのペルチエ素子１の発熱側が放熱用ヒートシンク７を
介して放熱用空気に連通され、 前記ペルチエ素子１の冷却側に、内部に液体流路２を設
けた素子用熱交換器３が接触して配置され、 一部に気体４を保有する液体強制循環路５中に、前記素
子用熱交換器３の前記液体流路２を介装し、 前記通電の停止に伴い、液体14の強制循環が停止される
と共に、前記気体４が前記液体流路２に流入して、そこ
に保持されるように構成したことを特徴とする冷却装
置。1. A cooling device in which cooling is performed by a Peltier effect due to energization, the heat generating side of the Peltier element 1 is communicated with heat radiating air via a heat sink 7 for heat radiation, and the cooling side of the Peltier element 1 internally The element heat exchanger 3 provided with the liquid flow path 2 is disposed in contact with the liquid flow path 2, and the liquid flow path 2 of the element heat exchanger 3 is placed in the liquid forced circulation path 5 partially holding the gas 4. It is configured such that the forced circulation of the liquid 14 is stopped when the energization is stopped, and the gas 4 flows into the liquid flow path 2 and is held there. Cooling system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18077093A JP3321624B2 (en) | 1993-06-25 | 1993-06-25 | Cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18077093A JP3321624B2 (en) | 1993-06-25 | 1993-06-25 | Cooling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0712421A true JPH0712421A (en) | 1995-01-17 |
| JP3321624B2 JP3321624B2 (en) | 2002-09-03 |
Family
ID=16089026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18077093A Expired - Fee Related JP3321624B2 (en) | 1993-06-25 | 1993-06-25 | Cooling system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3321624B2 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1089828A (en) * | 1996-07-23 | 1998-04-10 | Mando Mach Co Ltd | Food storage |
| WO1998021532A1 (en) * | 1996-11-08 | 1998-05-22 | Matsushita Refrigeration Company | Thermoelectric module-containing heat exchanger unit and thermoelectric cooling system |
| WO1998021530A1 (en) * | 1996-11-08 | 1998-05-22 | Matsushita Refrigeration Company | Liquid feeding method for thermoelectric cooling systems |
| WO1998021531A1 (en) * | 1996-11-08 | 1998-05-22 | Matsushita Refrigeration Company | Thermoelectric cooling system |
| KR20040005502A (en) * | 2002-07-10 | 2004-01-16 | 박종후 | Portable refrigerator |
| JP2007526650A (en) * | 2004-03-02 | 2007-09-13 | ペルテク エッセ エレ エレ | Improvement of thermoelectric heat pump or related to it |
| KR100886951B1 (en) * | 2007-07-12 | 2009-03-09 | 한국전기연구원 | Cooling apparatus having thermoelectric module |
| CN107659058A (en) * | 2017-11-15 | 2018-02-02 | 威海众泰电机有限公司 | A kind of motor of high heat dispersion |
-
1993
- 1993-06-25 JP JP18077093A patent/JP3321624B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1089828A (en) * | 1996-07-23 | 1998-04-10 | Mando Mach Co Ltd | Food storage |
| WO1998021532A1 (en) * | 1996-11-08 | 1998-05-22 | Matsushita Refrigeration Company | Thermoelectric module-containing heat exchanger unit and thermoelectric cooling system |
| WO1998021530A1 (en) * | 1996-11-08 | 1998-05-22 | Matsushita Refrigeration Company | Liquid feeding method for thermoelectric cooling systems |
| WO1998021531A1 (en) * | 1996-11-08 | 1998-05-22 | Matsushita Refrigeration Company | Thermoelectric cooling system |
| US6293107B1 (en) | 1996-11-08 | 2001-09-25 | Matsushita Refrigeration Company | Thermoelectric cooling system |
| KR20040005502A (en) * | 2002-07-10 | 2004-01-16 | 박종후 | Portable refrigerator |
| JP2007526650A (en) * | 2004-03-02 | 2007-09-13 | ペルテク エッセ エレ エレ | Improvement of thermoelectric heat pump or related to it |
| KR100886951B1 (en) * | 2007-07-12 | 2009-03-09 | 한국전기연구원 | Cooling apparatus having thermoelectric module |
| CN107659058A (en) * | 2017-11-15 | 2018-02-02 | 威海众泰电机有限公司 | A kind of motor of high heat dispersion |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3321624B2 (en) | 2002-09-03 |
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